184 U.S. NATIONAL MUSEUM BULLETIN 2 77 



Abdomen second segment broad, orange, with median brown spot, 

 granular; remainder orange, eighth segment orange, shining; ninth 

 tergum with 7 stiff spines and a ventral tuft of hairs; see figure. 



Male. — Unknown. 



Length: Female body 4 mm., wing 2.1 mm. 



Type-locality: 5.7 mi. w. of Glacier, California; 25 July 1960 

 (R. C. Dickson). 



Holotype: Female (CAS) 8937 (ex [PHT]). 



Paratype: 1 9, same data as type (PHT). 



128. Brevitrichia downeyi, new species 



Figure 122 



Male. — Head cream; eyes brown above, black below, may be 

 metallic in life; frons small, triangular; ocellar tubercle red-brown, 

 frosted tan pollinose, ocelli brown-red. Antennae with first two 

 segments brown, third segment yeUow-brown. See figure for details. 



Thorax dorsum black-brown, frosted gray pollinose, yellow bands 

 dividing dark area into three parts, pronotum cream above humeral 

 callus, with a black band separating it from the callus. Humeral 

 and supra-alar calli cream, scutellum cream with a narrow median 

 dark stripe. Pleura with prothorax cream; mesanepisternum cream, 

 with a black-brown spot; mesokatepisternum black-brown; all frosted 

 gray pollinose. Wings smoky, veins tan; halter stem brown, knob 

 cream. Legs femora light brown, frosted, with a light knee; tibiae 

 tan basally darkening to brown distally, tarsi brown. 



Abdomen with second segment with a black-brown proximal band 

 with a central stem narrowing distally, with lateral extensions like 

 a "T," remainder of margin white; third segment with a narrow 

 basal brown band, remainder white; remaining segments white. 

 Ninth tergum white, with a brown basal spot, many long hairs; see 

 figure for details. 



Female. — Head cream, eyes black-brown, may be metallic in life; 

 postocular ridge broad, with a brown band laterad of the corner of 

 the eye to the back of the head, sulcus from corner of eye extendi Qg 

 to back of head, separated by one-half the width of the ocellar tubercle 

 allowing front to reach the back of the head. Frons broad, with a 

 m,edian groove dividing a band of light brown, covered with short 

 hairs; ocellar tubercle black-brown, frosted gray pollinose; oceUi 

 red-orange; antennae all segments brown. See figure for details. 



Thorax dorsum black-brown, with two longitudinal yellow stripes 

 extending anteriorly between the yellow patch anterior to the 

 scutellum to the yellow patches above the humeral calli, granular 

 pollinose; humeral and supra-alar calli cream; scutellum cream- 

 yellow, with a narrow median brown patch. Pleural areas with 



